20832687500197 has 2 divisors, whose sum is σ = 20832687500198. Its totient is φ = 20832687500196.

The previous prime is 20832687500167. The next prime is 20832687500257. The reversal of 20832687500197 is 79100578623802.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20764417126401 + 68270373796 = 4556799^2 + 261286^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20832687500197 is a prime.

It is a super-3 number, since 3×20832687500197³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20832687500167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10416343750098 + 10416343750099.

It is an arithmetic number, because the mean of its divisors is an integer number (10416343750099).

Almost surely, 2^{20832687500197} is an apocalyptic number.

It is an amenable number.

20832687500197 is a deficient number, since it is larger than the sum of its proper divisors (1).

20832687500197 is an equidigital number, since it uses as much as digits as its factorization.

20832687500197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10160640, while the sum is 58.

The spelling of 20832687500197 in words is "twenty trillion, eight hundred thirty-two billion, six hundred eighty-seven million, five hundred thousand, one hundred ninety-seven".